Suspected Islamic extremists have killed at least 74 people and burned down an entire village in two separate attacks in Nigeria.

Witnesses say the attacks happened Sunday in in two northeastern states.

The terrorists set off bombs near a market in Kawori village in Borno, burning down the town.

Gunmen also opened fire on a church Sunday in Chakawa, in the state of Adamawa.

Major attacks blamed on Nigeria's Boko Haram

2009

July - Attacks prompt government crackdown in Bauchi and Maiduguri; 800 people killed

2010

December - Bombings in central Nigeria and church attacks in the northeast kill 86

2011

June - Attack on a bar in Maiduguri kills 25

August - Suicide bomber kills 23 at U.N. building in Abuja

November - Bombings in Damaturu and Potiskum kill 65

December - Christmas Day bombings across Nigeria kill 39

2012

January -- Gun and bomb attacks in Kano kill up to 200

February - Maiduguri market attack kills 30

June - Suicide car bombings at three churches kill 21

July - Attacks in Plateau state kill dozens, including two politicians at a funeral for the victims

2013

February - French family kidnapped in Cameroon, held hostage for two months

April - Fighting with troops in Baga kills up to 200; residents say troops set deadly fires

May - Attacks in Bama kill more than 50

July - Gunmen kill 30 at a school in Yobe

August - Gunmen kill 44 at a mosque outside Maiduguri

September - Gunmen kill 40 students a dorm in Yobe

October - Attack Yobe state capital Damaturu, clash with military in Borno state

Witnesses and authorities blame Boko Haram, the extremist group that uses terrorism in its fight to turn northern Nigeria into a conservative Islamic state. It is blamed for thousands of deaths since 2009.

Borno and Adamawa are two states where Nigerian President Goodluck Jonathan declared a state of emergency last May as part of efforts to fight Boko Haram.

Jonathan replaced his chief of defense and the heads of the army, navy and air force last week. No reason was given for the moves, but the army has struggled to stop attacks by Boko Haram.